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package servlets.gp.patient;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

/**
 *
 * @author Simon
 */
public class PatientSelectFilter implements Filter {

    public void init(FilterConfig filterConfig) throws ServletException {
    }

    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        if (request instanceof HttpServletRequest)
            if (((HttpServletRequest)request).getSession().getAttribute("pid") == null) {
                request.getRequestDispatcher("/gp/patients").forward(request, response);
                return;
            }

        chain.doFilter(request, response);

    }

    public void destroy() {
    }

}
